Hi Bill, Thanks for the nice words. I got the castings from Bob May since deceased, who designed it & who lived not far away. Nice guy & retired Cat engineer. The rights have been sold twice since then; the last I knew they were owned by somebody in Ohio who was not doing anything with them. That was a year or two (or more) ago. Have their contact info somewhere if you want it.
Hi Hugh, Thanks, Bill is correct.
Regards, Earl